PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

418771Attenuator,fixed

Raytheon Company Dba Raytheon · NSN 5985-00-581-7753 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-00-581-7753 — this item is cataloged by the U.S. Government under National Stock Number 5985-00-581-7753. Primary manufacturer part number: 418771.
Features
  • Attenuator,fixed — FSC 5985
  • Surface Treatment: SILVER BODY
  • Mounting Method: THREADED STUD(S)
  • Voltage Standing Wave Ratio: 1.15
  • Terminal Type and Quantity: 1 FLANGE
  • Mounting Hole/stud Quantity: 4
  • Voltage Standing Wave Ratio Frequency Range: +8.3 TO 9.4 GIGAHERTZ
  • Power Rating: 250.0 KILOWATTS AVERAGE
Applications
  • Applications requiring Copper Alloy Body construction
General Description

The Attenuator,fixed, cataloged under National Stock Number 5985-00-581-7753, is classified within Federal Supply Class 5985 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Raytheon Company Dba Raytheon. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-00-581-7753
Primary Part Number418771
Item NameAttenuator,fixed
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerRaytheon Company Dba Raytheon
StatusACTIVE
Surface TreatmentSILVER BODY
Mounting MethodTHREADED STUD(S)
Voltage Standing Wave Ratio1.15
Terminal Type and Quantity1 FLANGE
Mounting Hole/stud Quantity4
Voltage Standing Wave Ratio Frequency Range+8.3 TO 9.4 GIGAHERTZ
Power Rating250.0 KILOWATTS AVERAGE
Frequency Range8.300 GIGAHERTZ MINIMUM AND 9.400 GIGAHERTZ MAXIMUM
Attenuation Accuracy in Decibels-0.17 TO 0.25
MaterialCOPPER ALLOY BODY
Application DesignWAVEGUIDE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4030-01-668-614841877-1 INTERCHANGEABLE
Shackle
United States Department of the Navy Dba Naval Surface Warfare Center Panama City
Cross-Reference Index
Part NumberManufacturer
418771 PRIMARY Raytheon Company Dba Raytheon (USA)
Related Parts
4030-01-668-6148INTERCHANGEABLE
SHACKLE
41877-1

Frequently Asked Questions

What is NSN 5985-00-581-7753?

NSN 5985-00-581-7753 is a Attenuator,fixed, manufactured by Raytheon Company Dba Raytheon, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-00-581-7753?

NSN 5985-00-581-7753 has 1 cross-referenced part number: 418771 (Raytheon Company Dba Raytheon).

What NSN replaces 5985-00-581-7753?

There is 1 known substitute for 5985-00-581-7753: 4030-01-668-6148. Verify interchangeability with system specifications before substitution.

What are the specifications of 418771?

Key specifications for 418771: Surface Treatment: SILVER BODY; Mounting Method: THREADED STUD(S); Voltage Standing Wave Ratio: 1.15; Terminal Type and Quantity: 1 FLANGE. 11 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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